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W. A. SIMONDS. GAS REGULATOR.

No. 75,210. Patented Mar. 3, 1868.

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WARREN A. SIMONDS, OF' BOSTON, MASSACHUSETTS, ASSIGNOR TO HIM- SELF ANDHENRY H. HYDE, OF SAME PLACE.

Letters Patent No. 75,210, dated March 3, 1868.

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TO ALL WHOM IT MAY CON GERN:

Be it known that I, Wanna A. Smonns, of Boston, in the county ofSufiolk, and State of Massachusetts, have invented a new and usefulImproved Gas-Regulator and Ida hereby declare that the following is afull, clear, and exact description of the construction and operation ofthe same, reference being had to the accompanying drawings, forming partof this specification, in which- Figure 1, is a vertical section.

Figure 2, an elevation of the valve-chest.

Figure 3, a section of the valve-chest.

Like letters indicate like parts in all thefigures.

This invention is of a new regulator for the pressure of gas, and isapplicable for the ordinary coal-gas of cities. It consists of an ironcylinder, A, into which: gas enters through pipe 13 and valve-chest G,and from which it is delivered for consumption through pipe D. Thiscylinder has a cover, E, which is locked on the outside. An annulargroove, G, runs round the periphery of cylinder A, in its interior,which is filled with mercury, and in this'fioets the bell F. To thecentre of the dome of this is attached rod k, which fastens by joints iand k, at right angles with each other, a sort of universal couplingtovalve 1. This valve slides on plane surfaces on the interior ofvalve-chest G, is pressed close to the inner surface 0 of valve-chest Cby spring m, and closes or opens the triangular opening 1: of chest 0,in plate 0. The apex of the triangle points upwards, thus giving a veryquick and sensitive motion to the bell.

The apparatus is eminently qualified for the regulation of the flowofgas. -A triangular opening is -one eminently favorable to regulation ofpressure. It presents the maximum of boundary and minimum 'of 'area. Theconstruction of the valve is simple, with no liability to disorder, andthe connections between valve and hell are direct, straight, and close.Almost every part is 'a plain casting, and the surfaces to be fittedare-few, and the work on them plain and siu'1pleL. I

A pressure of threeinches of water, or less, is readily reduced by thismachine one half, and rendered very equable. To burngas economically andwithout waste, a comparatively light pressure and free opening aredesirable. If the opening be narrow and the passage quick, the gas willrear, and part of it pass ofi' uncon sumcd, This regulator accomplisheswhat is desired, and is indestructible by the corrosive action of thegas.

I claim as my invention, and desire to secure by Letters Patent- 1. Thearrangement of cylinder A, with its interior annular ring or chamber,filled with mercury, and inlet 'and egress-passagesB and D, inconnection with fioctingbell F and red It, opening and closing valve Z,in valvechest C, all operating together as and for thepurpose.described.

2. The construction of the regulation-valve, consisting of valve-chestC, with its triangular opening 11., in plate 0, and having arrangedwithin it slide I, pressed by spring at, to open or close the saidopening, all opersting-together, as and for the purpose described.

WARREN A. SIMONDS.

Witnesses:

Tnnononn 'Wnssnna, Tues. Wis, Gasman.

